Operating means for fanlights and the like



Doc- 18, 19 28.

' F. BIRD orm'i me Ina/ms FOR .FANLIGHTS AND THE m:

Patented Dec. 18 19 r to p p ArENroF UNITED sr 1 ,695,755v FICE.

FRANK BIRD, or HAMILTom nw-znALANn, AssIGNo'R TO Bmns'. PATENTS LIMrrEn,

or AUCKLAND, ew. ZEALAND.

OPERATING MEANS FOR FA LIeH'rsANn THE LIKE.

Appliea tion filed November 18,1927. Serial No. 234,221.

This invention relates to improvements in means devised forusein the operation'of' overhead fanlightsashes and the-like, such asv door transoms, skylights i and all classes of sashes in which the sash 'is hinged'along one edge or end and is opened and closed means operating to swing the sash upon ts hinges.

The said means are of such a nature as to provide for the "opening movement belng regulated to any amountwithm' the llmits provided for, and for'the sash-being firmly retained in its adjusted position... They are also of such .a nature as to provide for the openingand closing movements of the sash being effected by the turning of a lever.

through the agency of a pull "cord attached thereto. v

The invention comprises a crank lever that .is mounted on a pivot affixed 'to themain frame ofthe-sash and is connected by a connecting rod with thesash itself so thata full half-turn of the crank lever will thrust open the sash to its limit and the remaining halfturn will draw it to the closed position again.

This lever is combined with an operating 1e ver mounted loosely on. the same pivot and capable of being turnedonly through a fraction of a revolution, saidoperatlng lever being spring controlled to draw it normallyupwards and being adapted to be turned downward against the action of the spring.

The crank lever has a ratchet wheel combined therewith, and the operating lever has a pawl pivoted thereon that is adapted to engage with the ratchet wheel and turn it and the crank lever when the operating lever is.

turned, and thereby to rotate the crank lever by a series of movements through a. full rotation to open and close the sash, the sash be ing adapted to remain at, any position represented by the separate movements of the crank lever.

This construction of apparatus is' illus Q which Figure 1 is a sash closed. 1

Figure 2 isa side. elevation, and

. Figure 3 a front elevation thereof, showing trated in the accompanymg drawings, in

the sash partially opened as by the first-move 7 its full turn by the same action of the opera ment of the crank lever. j V V Figure 4 is a sectional elevatlon onthe line H of Figure 3 and looking to the left t r rangement of these means, as shown in the thereof.

thereon.

Figure 5' is an inside elevation of the crank Y lever.

comprising the invention.

A represents the main frame of the structure and B the portion or member'of the sash frame with which it is combined.

To the facevof the frame A, a plate 10-is aflixed, such plate having ajournal 11 com bined therewithto project from its face and from which journal a threaded stem 12BX- tends. Such stem is flatted, asat 13,-on one side, fora purpose to be afterwards explained.

A crank lever 1 L has a hollow boss [15 which fits over the stem 12 and surrounds the journal 11 with a neat fit so that it may turn This boss is pressed inward to make a frictional grip upon its journal that will serve to hold the crank lever at anypoint in its turning movemen't'against any ordinary strain,.by means"of-" a washer-'16 engaging its outsideface and a spring presser plate 17 'ennut to provide, for any desired resistance against the turning of the crank; operating lever. I

The outer end ofthe cranklever 14 has pivoted to it one end of a connecting link or rod "'19, the other end of which is pivoted in a bracket 20 that is made fast to the sash B at any approved distance out from its hinge.

These parts are so relatively arranged that when the crank lever 14 is turned to extend straight across from the sash B, the sash is drawn tightly to the closedposition as ,in

Figure 1.- A half tu r n of the crank through thellower part of its rot'ation willtherefore cause the sash to be thrust opento the maxip mum amount allowed for, and the remaining plan of the device showing the half-turn through the-upperfpart .ofits rotation will. pull thesashback to the closed position.

The appliance embodies means for thus turning the crank lever through fractionsof tive means, so that a series of movements the sash may be opened' and closed. The ar-- gagingthe-outside of the washer, both of drawings, provides for tour movements imparting a full turn to the crank lever, thereby allowing for the first movement halt opening the sash, the second movement fully opening it, the third halt closing it, and the fourth tully closing it. @ther fractions-may however be arranged for.

Such means consist in an operating lever 21 that has its boss 22 loosely journalled to turn upon the boss of the crank lever and upon the inside thereo'l'. This lever 21 is restricted to a quarter-iietation by means of a block 23 upon its inside tace situated bet-Weenblocks 24 and 25 fixed on the adjacent face of the bearing plate 10. A coiled spring26 surrounds the boss 22' of the operating lever and serves to keep that lever normally raised to the upward limit of its movement, represented in dotted lines in Fig. 2 and to return it to. such position when it is crawn down into its full-line position and then released. These blocks are clearly shown in lligure t.

The crank lever 14, on its rear side, has ratchet wheel 14* formed in one therewith, and such ratchet wheel is adjacent to the front face oi? the lever 21. On sucl face a pawl 21 is pivoted so that it adaptedtc engage the teeth of the ratchet wheel is when the lever 21 ispulled down'against its spring, and to slide freely over it when the lever turns up. Thus av downward puli on this leverwill turn the crank lever a portion of its rotation equal to the amountoit moven'i-entgiven the operating lever, and the desired partial or full opening or closing of the sash will be obtained by a series of pulls.

ll or thus actuating this lever 21, a pull cord 27 is attached to its outer end and de pends to within reach from the floor level below.

cured to the main frame of the sash, a crank lever mounted upon such journal and havmg a ratchet wheel combined therewith, a

connecting rod extending between the crank lever and the sash and pivotally attached thereto, an operating lever structually separate from and movable relatively to the crank lever and journalled onfthe said journal, a pawl pivoted onsuch operating lever and adapted to engage the said ratchet wheel; when the operating lever is turned in one direction, and spring means for normally turningsaid operating lever in the reverse direction. Y r p p v 2. in a tanlight or other hinged-sash oper ating means according to claim 1, a stop piece on the operating lever, and two stop blocks fixed around the pivot thereof at dis tances apart and between which the said stop piece is positioned. I

3. In a tanlight or other hinged-sash operating means according to claim 1, a. bearing plate, a journal for the crank lever 'atlixed to said plate, a hollow boss for the crank lever fitting over such journal, a threaded stem extending from the ournal and passing through the crank lever boss, a spring actu ated ier placed on such stem. to engage the boss and held from rotation, and a. thumb.

nut screwed upon the stem, to engac'e such Washer. 1

4. A tanlight or other hinged-sash oper:

ating means according to claim 1, in which the-crank lever has a boss tormedto provide v a journal for the actuating lever.

.In testimony whereof, V

- FRANK BIRD.

I aflix my signature. 

